Mongolia takes border security very seriously and foreign nationals are not routinely permitted access to border areas. The authorities can regard zones of up to 100km inside the border as a border area. If you wish to travel in these areas, you must get permission from the State Frontier Guard Authority. Only a few specified land border crossings are open to foreigners. See Border crossings.
There is a low threat from terrorism. See Terrorism.
Avoid going out on foot alone at night. Foreigners stand out and can be targeted for attack because of their comparative wealth. See Crime.
Around 10,000 British nationals visit Mongolia annually. Most visits are trouble-free.
Take out comprehensive travel and medical insurance before you travel.